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Cerro Mirador ski resort
Tier A — Prime El Niño terrain

South America

Cerro Mirador Snow Forecast

16

Limited

→stable

Last Snowfall

Sep 16

5d ago

Past 24 Hours

0cm

Past 48 Hours

0cm

Past 10 Days

7cm

7-Day Forecast

0cm

Snow Depth

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Updated: Sep 21, 9:01 AM•Weather at base: 380m
SnowSure™ ScoreAI
16
Limited
→stable

Limited conditions.

Cerro Mirador is currently experiencing clear skies with a temperature of -4°C. The resort has received 7cm of snow over the past week, contributing to a season total of 77cm, which is about 80% of the 5-year average for this time of year.

AI-generated summary
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Depth

No reliable depth reading available.

↓

Recent

No new snow has fallen in the past 24 or 48 hours, but there was 7cm in the last week.

↓

Forecast

Dry for the next 7 days.

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Historic

This season's total of 77cm is below the 5-year average of 96cm for this date.

Data updated Mon, Sep 21, 09:01 AM UTC

Snow Summary

570m
ECMWFGFSGEMJMAICONMétéo-Fr

Updated Sep 21, 2026 at 9:01 AM

7cm
24h
0cm
Past 10d
7-Day Forecast
7
Prev10d
—
Now21
—
T22
—
W23
—
T24
—
F25
—
S26
—
S27
Days 8–14 and every model are in Pro.Unlock with Pro
Past
Today
Forecast

Hourly Forecast

21 Mon
2° / -5°
22 Tue
2° / -4°
23 Wed
3° / -3°
24 Thu
2° / -5°
25 Fri
5° / 0°
26 Sat
5° / -1°
27 Sun
4° / -2°
Days 8–14 and every model are in SnowSure Pro.Unlock with Pro
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight28 Mon29 Tue30 Wed1 Thu2 Fri3 Sat4 Sun
Conditions☀️☁️☀️☁️☁️☀️🌤️🌧️☀️⛅☁️☀️☁️☁️⛅☀️☁️🌤️🌤️☀️🌤️
clearcloudyclearcloudycloudyclearmostly clearlight drizzleclearsome cloudscloudyclearcloudycloudysome cloudsclearcloudymostly clearmostly clearclearmostly clear
Summit570 mModeled
Temp°C-2°1°-3°-2°2°-1°-1°3°-1°-3°1°-2°1°4°1°0°4°0°1°3°0°
Feels like°C-7°-4°-7°-7°-3°-5°-5°-1°-5°-7°-4°-7°-4°-1°-4°-4°0°-4°-3°0°-3°
Snowcm·····0.1··0.1···········0.1
Precipmm·····0.2·0.50.2···········0.2
Windkm/h101212910810810101515181916101210585
Mid-mountain475 mModeled
Temp°C-2°2°-2°-2°2°-1°0°3°0°-2°2°-1°2°5°2°1°5°1°1°4°0°
Feels like°C-6°-3°-7°-6°-2°-5°-4°-1°-4°-6°-3°-6°-3°0°-3°-3°1°-3°-2°0°-3°
Snowcm·····0.1··0.1············
Precipmm·····0.2·0.50.2···········0.2
Windkm/h101212910810810101515181916101210585
Base380 mModeled
Temp°C-1°2°-1°-1°3°0°0°4°0°-1°2°-1°3°5°2°2°6°2°2°5°1°
Feels like°C-6°-2°-6°-5°-1°-4°-4°0°-4°-6°-3°-6°-2°0°-2°-2°1°-2°-2°1°-2°
Snowcm·····0.1··0.1············
Precipmm·····0.2·0.50.2···········0.2
Windkm/h101212910810810101515181916101210585
Humidity%765572756280846382745777806576796078676176
0°C linem—————————————————————
Forecast Range · SnowSure Pro

Every model for Cerro Mirador, side by side for 14 days

Where the models agree, where they split, and which one has been most accurate here. Free for 14 days, then yearly.

Unlock with Pro

SnowSure™ blend — verified model weighting

The black line is not a simple average. For Cerro Mirador (andes), we combine seven global weather models using weights learned from daily forecast verification — comparing each model's prediction to measured snowfall (SNOTEL, resort reports, ERA5).

  • 1.Horizon buckets: days 1–3, 4–7, and 8–14 each get separate weights — short-range skill differs from long-range.
  • 2.Regional calibration: weights come from verified error in this geography (Rockies, Alps, Japan, etc.), recalculated weekly.
  • 3.Ground truth only: we never grade a forecast against another model — only against measured snow.

Building verification history for this resort.

How we verify forecasts →

Snowfall Forecast Maps

Andes (Chile & Argentina) region

El Niño Outlook · Winter 2026

Cerro Mirador El Niño rank & forecast

Cerro Mirador ranks #8 of 488 SnowSure resorts — Tier A, +45% in strong El Niño winters.

Tier A — Prime El Niño terrain: Historically snowed much more than normal in strong El Niño winters (≥ +8% vs this resort’s own 30-year average).

#8 of 488Tier A — Prime El Niño terrain

Strong-event signal: +45% vs this resort's 30-yr avg

In the three strongest El Niño winters on record ('97-98, '15-16, '23-24), Cerro Mirador averaged +45% versus its own 30-year snowfall baseline. The pattern has historically been a friend here. With a record-strength event forecast for winter 2026, Cerro Mirador sits on the favorable side of the ledger. Analog winters: '97-98 -27%, '15-16 +58%, '23-24 +105%. A pattern, not a promise.

'97-98 −27%'15-16 +58%'23-24 +105%

In-season scorecard

Predicted signal

+45%

Measured to date

+11%

Season total

77 cm

Vs predicted

−35%

Predicted signal vs measured season-to-date against this resort's own climatology.

Signal = average snowfall in the three strongest El Niño winters since 1996 ('97-98, '15-16, '23-24) vs this resort's own 30-year ERA5 baseline. n=3 — a lean, not a law. Updated monthly against measured snowfall Dec–Mar.

Full El Niño report →

ENSO seasonal analog

History · not a forecast

In 6 past El Niño winters at Cerro Mirador, ERA5 season snowfall median was 81 cm (32 in), about 8% above this resort’s long-term median. This is a historical analog from reanalysis — not a prediction of this winter’s storm track.

Prevailing ONI

El Niño

JJA 2026 · ANOM +1.8°C

Analog season median

81cm

6 El Niño winters · 8% above median

All-season median

75cm

Across 31 ERA5 seasons (2026)

PhaseSeasonsMedianp25–p75Recent analogs
El Niñocurrent681cm65cm – 122cm2026, 2023, 2015, 2009, 2002, 1997
La Niña472cm66cm – 80cm2022, 2010, 1999, 1998
ENSO-neutral2175cm64cm – 105cm2025, 2024, 2021, 2020, 2019, 2018

Season snowfall from Open-Meteo ERA5 reanalysis (~9 km). ENSO phase from NOAA CPC Oceanic Niño Index. Relative phase differences are more trustworthy than absolute cm totals. Source: NOAA CPC Oceanic Niño Index + Open-Meteo ERA5 via SnowSure season archive.

Local Reports

0 reports

How accurate is this forecast?

We verify every forecast against what actually fell — see the model-by-model results.

→

Frequently asked questions about Cerro Mirador

How much snow is Cerro Mirador getting this week?
No significant snow is forecast at Cerro Mirador over the next 7 days.
What is the 14-day snow forecast for Cerro Mirador?
The full 14-day forecast for Cerro Mirador — the SnowSure™ blend and every model we track, day by day — is part of SnowSure Pro. The first 7 days are free on this page.
How accurate are SnowSure forecasts for Cerro Mirador?
We verify every forecast against what actually fell and publish the results — see our forecast verification pages for model-by-model accuracy, updated continuously.